He told us that,if we could all come to help out,the whole s

一般来说,含有条件状语从句的句子是这样的形式：主句+从句,例如：The whole situation would be getting better if we could all come to help out.但是,当整个句子作宾语从句时,即：He told us that the whole situation would be getting better if we could all come to help out.就可能产生歧义,因为条件状语从句的修饰对象有可能是He told us ...,也可能是the whole situation would ...,这种情况下,if 从句只好作为插入成份,其修饰的对象就很明确了,同时还起到强调if从句的作用.